Keyboard



FIG. 1 is a top front and right side perspective view of a keyboard showing my new design;

FIG. 2 is a bottom front and left side perspective view thereof;

FIG. 3 is an enlarged top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top front perspective view thereof;

FIG. 6 is a top rear perspective view thereof;

FIG. 7 is a top right side perspective view thereof; and,

FIG. 8 is a top left side perspective view thereof. 

The ornamental design for a keyboard, as shown and described. 